Cotton-cleaning machine



April 24, 1928. 1,667,505

S. H. ASSITER COTTON CLEANING MACHINE Filed Dec. 22. 1926 2 Sheets-Sheet1 6 TEPHE/V ff A55 TEE $2) W /QZQZ M 5. H. ASSITER COTTON CLEANINGMACHINE A ril 24, 1928.

Filed Dec. 22. 1926 2 Sheets-Sheet 2 w x5 I l 55 ."AH. I

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g, W e 13 I v Patented Apr..2 4,19Z8.r c a i UNITEDQSTATES PATENT oFlc-a STEPHEN HARVEY ASSITER, or FLOYDADA, TEXAS; I

V COTTON-CLEANING MAC INE. H

Application filed December 22; 1926. Serial No. 156,490. I

The present invention relates to improvetween the end walls llandextendin 1on mentsin cotton machinery and has for its gitudinally in thelower central 'ortion of primary object to provide a machine Which thehousing is a'trough 12, one en of which i will remove the shale andportions of burr communicates with .an opening 13' in (mano 5 or boll"from the cotton which is frequently of the endwa'llsll. a i left in thecotton when the" same is' passed fA pai'rof longitudinally extendin'parallel through the boll extractor. brace beams 14 extend at jeach si eof the A further object of the invention is the trough 12a'nd arerigidly secured to the'endf provision of a cottoncleaning machine par-1wallsi, "Rigidly secured on theupper hori' 1 ticularly'designed fortreating what is comzontal-edges of the end walls -11"is a longitumonlytermed, bolley cotton to produce dinal top wall "15 arranged in ahorizontal a higher grade of product. f V position. A vertical wall- 16isrigidly Se: "A still further objectof the inventionis cured to .theupper forward portions ofthe the provision of an auxiliary cottoncleaning end walls as shown in Figures 1 and 4; The

15 machine which is designed to be disposed be rear side of the housingis closed by a rear tween the conventional type'of'boll extractor wall17 secured tothe end wallsand eXtfid-, and the gin stand. I I ing at anangle ofinclination', the'lowered ge Still another object 'of'theinvention is ofthe, rear wall l'l' connecting witha lon'githe provisionof an auxiliary cotton cleaning tudinal rear beam 18.;

machine which is comparatively simple and Extending"longitudinally atthe forward ofdurable"construction" and which will be side ofthe'housing and arran ed at an angle efficient in operation. y ofinclination and spacedwith respect to'th' Another-object of theinvention isthe prolower edge" of the wallx16 is a-beam 19 w Vision of amachine'of the above type which form a'longit'udinalintake'opening'."Asian: 25 can be conveniently operated and which can ilar beam 20 issecured at'the rear'si'de'of the he maiiui'a'ctured at a relatively lowcost. housing immediately below the'beam 18 ,thi's Other objects'andadvantages of the in beam 20 being disposed at an angle of'inc'li;vention willbecome apparent as the descrip nation and in spaced relationt'o-the beam- 128* tion progresses. to form a discharge'openin 185 30 Inthe accompanying drawings forming' a I The lower portionof the "housingis -clos'ed' part of thisspec'ification and in which like by means ofmetallic plates 21 and 22', the f reference characters are employed todesig plate 21' being bent to. arcuate' iormand senate correspendingparts throughout the cured to the forward beam'19and the upper same: I r7 forward edge of the trough 12. The com- 00 35 Figure l is an endelevational view of an plementary metallic plate 22 is: also bent to'assembled machine onstructed 'in accor'darcuate form and hasitsn peredgds'eance with m'y'invention, r cured to the beam 20 and-it's lbw'eredge se Figure 2 is a rear 'elevational View of the cured to the upperrear side of the trough12. same, I r V I j v J ournaled in openingsformed in the end 4 Figure S'ifs'a front elevational view ofthe walls 11and extended longitudinally I sam i i through the housing is" a drumshaft-'23; a I Figure 4 is avertical transverse sectional drive pulley24 being rigidly secured upon View taken on the c'enterline oftlie'machine one outwardly "projecting end of the shaft on anenlarged'scale, and While a sprocket wheel 25 is secured upon 45 Figure5 is a vertical longitudinal sectionthe opposite'outwardly projectingend.- g al View on the line 55 of Fig. 1, r j Rigidl'y' secured upon theinner portionof Referring tothe drawing, wherein forthe the; shaft" 23androtatabletherewith is a purpose of illustration is shown the preycylindrical drum 26 embodying circular" ferred' embodiment of myinvention, the nu-: I heads 27'hav ngahgned openings-formed at mer'al 10generally designatesthe machine the center for; reception of thefsha'ft23; housing which is of elongated formation and Rl'gidly fixed in thecyl ndrical wall of the i polygonal in cross section. This housingemdruinand extending radlally outwardthere bodies a pair of end wallsllof generally from area plurality of teeth 28 arranged in rectangularformationhaving the corners longitudinal rows on the wa l'l of the drum.formed at an angular inclination as will be plate 29 is secured inhorizontal popresently indicated. Rigidly secured besitionj 1n the rearwa'll'ot the housing, this plate being adapted to prevent the cottonbeing carri d into the upper portion of the housing. V

Secured in position immediately below the under side of the drum andspaced from the teeth thereof is a foraminous screen 30 substantiallysemi-circular in cross section. The forward edge of the screen 30 issecured to the beam 19 while the rear edge-is attached to the inner edgeof the beam 20. From this construction it is apparent that the screen 30is disposed between the drum and the arcuate bottom plates 21 and 22.

Rotatably mounted in the trough 12 is a longitudinal spiral conveyor 31.The ends of the conveyor 31 are formed with spindles c 32, one end ofthe conveyor being rotatably supported in one of the end walls 11 whilethe opposite end projects through the opening 13 formed in therespective end wall and is rotatably supported in a bearing bracket 33mounted on said wall.

In operation, y improved cotton cleaning. machine is disposed adjacent aboll extractor and arranged so that the discharge of the extractor willbe positioned against the intake opening of the machine. The auxiliarycleaning machine is arranged on a level with the top of the gin stand alittle to the rear of the same so that the discharge opening of thecleaning machine is'arranged the cotton between the rotary inregistration with the intake of the gm stand. As the cotton passesthrough the boll extractor, which may be of the type known as theMitchel boll extractor, the bolls are removed but foreign matter such asshale remains mixed with the cotton. Ordinarily, this foreign matter isfed into the in stand so that a comparatively low grade of cotton isproduced. the. auxiliary cotton cleaning machine scribed in theforegoing, the particles of shale and other foreign matter arethoroughly separated from the cotton, by agitating V toothed drum andthe foraminous screen 30.

Asthe foreign matter is separated from the cotton, it is forced throughthe foraminous screen and discharged into the trough 12. The particlesof shale are then conveyed longitudinally through the trough .anddischarged into a suitable receptacle.

The machine is driven by means of a belt trained about the drive pulley24: which will. rotate the shaft 23 and drum. As clearly indicated inthe drawings, a sprocket wheel 34 is rigidly secured to the projectingend of the conveyor shaft 32, this wheel being arranged in a verticalplane with the sprocket 25 secured to the drum shaft 23 and driven bymeans of the chain 35 trained over the sprockets. From this constructionit will be noted that the conveyor is continuously rotated during therotary movement of the a bearing opening formed in shape,

When employing conventional type of boll extractor and gin i stand toeffectively remove extraneousmatter fromthe cotton so as to produce a,relativelyhigher standard of product. I

It is to be understood that the form of my invention herewith shown anddescribed is to be'taken as the preferred example of the same, andthatvariOus changes asto the size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claim. 4 y

Having thus described my invention, I claim: i

In a cotton cleaning machine, an elongated,

hollow body comprising a top wall, a relatively shallow the forwardsideof the'to'p wall, and a downwardly and rearwardly inclined rear wallextending from the rear side of the front wall, a relativelyshallowvertical wall section extending longitudinally at the lower edgeof the said inclined rear wall, an upwardly and forwardly inclined beam,the body of the cleaner further including end walls, the said beamextending betweenthe ends walls in spaced relation to and in a planebelow the lower edge of the front wall, a rearwardly and downwardlyinclined member extending. between the end walls and in a plane belowand spaced with respect to the lower edge of the vertical rear wallsection, a drum rotatably mounted inthe body and having itscircumference located relatively close to the lower edge of the frontwall and the lower edge of the said beam, the said surface of the drumbeing located relatively close to the upper forward edge of the memberwhich extends below and in spaced relation to the lower edge of thevertical rearwall section, a baffle extending longitudinally between theend walls of the body and forwardlywithin the body from substantiallythe upper edge of the said vertical rear wall section with. its forwardedge located relatively close to the front wall depending born and upperedge of the member which is lo cated below and in spaced relation tothe.

vertical rear wall section, the said screen being curved concentric tothesaid drum, a trough extending longitudinally beneath the drumsubstantially in the vertical plane of the axis of rotation of the drum,imperforate bottom members extending on curved lines between the saidbeam at the front of the body andvthe forward upper side ofthe troughand between the upper rear side of the trough and the said member whichextends below and in spaced relation to the vertical rearwall section, ascrew conveyor operating in said trough, and

means for imparting rotary motion simultaneously to the said drum and tothe said conveyor.

In testimony whereof I afiix my signature. STEPHEN HARVEY ASSITER.

